After cutting out this one daily habit, this woman lost nearly 30 pounds

Visit Maggie Fierro's Instagram account, and your jaw will drop at the stunning photos of her tanned, toned figure. But believe it or not, this fitness blogger hasn't always felt comfortable showing off her body. Four months after giving birth to her third child, Fierro weighed 166 pounds. While a bit of postpartum pooch is nothing to be ashamed of, she was ready for a major change. (Don't miss the most jaw-dropping weight transformations on Instagram, too.)

"To be honest, I even had a hard time looking at myself in the mirror, and taking that before picture was actually very difficult for me to do, but I knew something had to change," she told PopSugar.

The mom also prefers sticking to a plant-based diet and avoiding processed foods, but that doesn't mean she won't indulge every once in awhile. "Although I do eat fairly healthy, I am all about balance and don't put any heavy restrictions on my diet," she said. "If I'm out and I'm craving pizza, I will absolutely have pizza."

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13PHOTOS

Most notable celebrity weight loss transformations

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Most notable celebrity weight loss transformations

John Goodman - 1991

Cheerful John Goodman in a scene from the film 'Barton Fink', 1991. (Photo by 20th Century-Fox/Getty Images)

John Goodman - 2015

John Goodman attends the 'Trumbo' Accenture Gala during the BFI London Film Festival at Odeon Leicester Square on October 8, 2015 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)

Khloe Kardashian - 2007

Khloe Kardashian at the 'Keeping Up With The Kardashians' premiere party on October 9, 2007 in West Hollywood, California. (Photo by Jeff Vespa/WireImage)

Khloe Kardashian - 2015

Khloe Kardashian appears At ULTA Beauty's West Hills Store To Promote Kardashian Beauty Hair Care And Styling Line at ULTA Beauty on April 2, 2015 in West Hills, California. (Photo by Frazer Harrison/Getty Images)

Kelly Osbourne, daughter of rocker Ozzy Osbourne at St Martin's Lane Hotel, London, August 21, 2002. Kelly, along with brother Jack, mother Sharon and father Ozzy, are the stars of their own reality television show, 'The Osbournes'. (Photo by Gareth Davies/Getty Images)

Kelly Osbourne - 2015

Special guest Kelly Osbourne celebrates the opening of the new Cost Plus World Market Chelsea, New York store on August 18, 2015 in New York City. (Photo by Jamie McCarthy/Getty Images for World Market)

Chaz Bono - 2010

Chaz Bono arrives at the 21st Annual GLAAD Media Awards held at Hyatt Regency Century Plaza on April 17, 2010 in Century City, California. (Photo by Angela Weiss/Getty Images)

To tone up her muscles, Fierro started out with fitness programs like Kayla Itsines' BBG, low-intensity workouts, and a few high intensity interval training (HIIT) moves. Now, she often mixes weightlifting and HIIT exercises six days a week, along with a short jump rope routine before her kids' bedtime.

Thanks to these simple changes, Fierro has lost 26 pounds so far. Though that number seems small at first, her photos say it best: Fierro has totally transformed her body while taking ownership of her health, to boot.

The major takeaway? When it comes to weight loss, a little can go a long way. Here are 42 fast, easy tips for weight loss to get you started on your own weight loss journey today.

If it's not smothered in buttered, doused in seasoning or salt, popcorn makes for a great snack. If air-popped, the light, low-calorie snack can be a good source of fiber, without the cholesterol. Plus, it's considered a whole grain!

Celery

Calories per stalk: 6

Since celery is mostly water, the fibrous plant has been known to offer many health benefits.

A great source of calcium and vitamins, cottage cheese is a go-to snack for many looking to maintain their weight. High in protein (28 grams in 1 cup of low-fat) it's recommended highly by nutritionists and athletes. The calcium-packed snack will help you feel full as it is "associated with metabolic processes that reduce fat accumulation and accelerate fat loss," according to Authority Nutrition.

Blueberries

Calories per cup: 85

The fruit is low in saturated fat, is a great source of antioxidants and dietary fiber -- and thus, can be a healthy snack for those looking to maintain or even lose weight.

Grapefruit

With only 52 calories in half of the fruit, the citrus makes for a refreshing breakfast or snack. Packed with antioxidants, vitamins and nutrients, the fruit is known to boost metabolism and lower insulin levels -- thus, actually burning fat!